package org.apache.lucene.facet.params;

import java.util.Map;

import org.apache.lucene.facet.taxonomy.CategoryPath;

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/**
 * A {@link CategoryListParams} which allow controlling the
 * {@link CategoryListParams.OrdinalPolicy} used for each dimension. The
 * dimension is specified as the first component in
 * {@link CategoryPath#components}.
 */
public class PerDimensionOrdinalPolicy extends CategoryListParams {

  private final Map<String,OrdinalPolicy> policies;
  private final OrdinalPolicy defaultOP;
  
  public PerDimensionOrdinalPolicy(Map<String,OrdinalPolicy> policies) {
    this(policies, DEFAULT_ORDINAL_POLICY);
  }
  
  public PerDimensionOrdinalPolicy(Map<String,OrdinalPolicy> policies, OrdinalPolicy defaultOP) {
    this.defaultOP = defaultOP;
    this.policies = policies;
  }

  @Override
  public OrdinalPolicy getOrdinalPolicy(String dimension) {
    OrdinalPolicy op = policies.get(dimension);
    return op == null ? defaultOP : op;
  }
  
  @Override
  public String toString() {
    return super.toString() + " policies=" + policies;
  }
  
}
